Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e35dfb368c2c572…

MALICIOUS

PDF

43.0 KB Created: 2020-07-28 05:38:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69f0a01e75ae760785ff08d135c95e33 SHA-1: f06ceca65c22da90c08ad712a066406d005dba70 SHA-256: 4e35dfb368c2c5727a79e5094d951c59b4bf53e668d619650da695698cc62a51
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link and a large number of external PDF links, suggesting a link farm or phishing attempt. The document body, though heavily obfuscated, appears to be related to a 'redundancy notice template', which is a common lure for phishing or scam operations. The presence of a callback lure heuristic further supports a phishing or tech-support scam pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=redundancy+notice+template+nz In PDF document text
    • http://files.engagecamps.org/uploads/1/3/2/3/132303151/c1b51e16f2.pdfIn PDF document text
    • http://files.808boogietcontest.com/uploads/1/3/1/4/131438541/doroni.pdfIn PDF document text
    • http://files.christianlorenzo.com/uploads/1/3/1/3/131398036/porasaroxitukazevas.pdfIn PDF document text
    • http://files.reimaginingourwestmoreland.org/uploads/1/3/1/4/131407102/3477701.pdfIn PDF document text
    • http://files.nofakies.com/uploads/1/3/0/7/130776042/xesuk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5679/8613/files/juxorifaxorekaxexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2146/5757/files/21402837896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/sikujis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/fazovejisaliz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7580/files/vomapigokogajelejovubagew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5512/7459/files/68674802164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/30873804341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6616/2341/files/86498962749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/tumugeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8581/5205/files/91894497255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/zojatirew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nubizasijimowedemo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C3E 4984 bytes
SHA-256: 7843d4c36454b9eaabde593d2fae031ff7e9a247d332a7d23904bd79ebddaa09
font_01_sfnt_off00007d28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D28 9728 bytes
SHA-256: b2c65b9cd9ab8b5c5ffdabeb040939041ee372430f4c8ee62b272a3528693762

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